Commit f307170d authored Jun 19, 2015 by Eric W. Biederman Committed by Pablo Neira Ayuso Jul 02, 2015

netfilter: nf_queue: Don't recompute the hook_list head



If someone sends packets from one of the netdevice ingress hooks to
the a userspace queue, and then userspace later accepts the packet,
the netfilter code can enter an infinite loop as the list head will
never be found.

Pass in the saved list_head to avoid this.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

parent 4da3064d

net/netfilter/nf_queue.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -213,7 +213,7 @@ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)

		if (verdict == NF_ACCEPT) {
		next_hook:
		verdict = nf_iterate(&nf_hooks[entry->state.pf][entry->state.hook],
		verdict = nf_iterate(entry->state.hook_list,
		skb, &entry->state, &elem);
		}